Punishments are resetting halfway through WTF!!

Iknow that I may have left some matches and I usually accept the pusnishment and just play the 5 matches and get on this time I got really pissed about my client (or at least I think so) kept resetting my duration of time that I had to wait this has happened for me around 4 times were I either just reset my client by quitting and logging in again or I’d shut down my pc and then start it up again and I would be pleased if I could get some info ion how and why this happened for or/if anybody else have had a problem like this. Your dearest summoner- sgt is awesome